So l am asked to find a CMOS realization of a boolean function. I just want to know if l did it correctly. I have attached the problem and my worked out solution.

 

Your Pull Down Network is correct, but your Pull Up Network isn't.

The expression you want for that part is:
(A+B(C+D))'=
A'(B(C+D))'=
A'(B'+(C+D)')=
A'(B'+C'D')

Care do give it another try?

 

Sorry for the late response. Here is my second attempt. Is it correct now ?

 

Yep, that's it. Good job!

 

I tried another problem just to make sure l get the hang of it, is this correct ? My other question is, does the PUN network realize the circuit for the function for y' and the PDN network realizes the function for y ?